/Engine/Plugins/Runtime/Metasound/Source/MetasoundFrontend/Public/MetasoundFrontendGraphLinter.h
Returns true if the FromNode can reach the ToNode by traversing the graph in the forward direction.
static bool IsReachableDownstream ( const [INodeController](API\Plugins\MetasoundFrontend\INodeController) & InFromNode, const [INodeController](API\Plugins\MetasoundFrontend\INodeController) & InToNode )